Board fit method to check ship fit
added board mods
Merge pull request #13 from NicolePell/master

Refactoring, fixing errors
boundary and ship cross methods added
Viewing Andrew's additions Merge branch 'boardadds' of https://github.com/snozza/battleships into snozza-boardadds
Merge branch 'snozza-boardadds'
Fixed board conflict
Created game class that initialises with two players